1820545746230 has 32 divisors (see below), whose sum is σ = 3456050803200. Its totient is φ = 688571878752.

The previous prime is 1820545746209. The next prime is 1820545746241. The reversal of 1820545746230 is 326475450281.

It is a super-2 number, since 2×1820545746230² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9061070 + ... + 9259809.

It is an arithmetic number, because the mean of its divisors is an integer number (108001587600).

Almost surely, 2^{1820545746230} is an apocalyptic number.

1820545746230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1820545746230 is a deficient number, since it is larger than the sum of its proper divisors (1635505056970).

1820545746230 is a wasteful number, since it uses less digits than its factorization.

1820545746230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18321428.

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 1820545746230 in words is "one trillion, eight hundred twenty billion, five hundred forty-five million, seven hundred forty-six thousand, two hundred thirty".